Page 1 of 2 12 LastLast
Results 1 to 10 of 18

Thread: Subwoofer problem with Laptop CarPC

  1. #1
    Newbie
    Join Date
    Mar 2007
    Location
    Michigan
    Posts
    36

    Subwoofer problem with Laptop CarPC

    I just finished hooking everything up into my car, running wires, and such. When I went to flick the switch for my subs to turn on, The subwoofers dont beat with the Music, its just a constant loud hitting sound...I have A 3.5mm to 2 RCA output cable that splits into two ways, adapters into four wires to 4CH Speaker Amp, than one wire into two wires to my subwoofer amp.. Anyone know whats going on? Thanks

  2. #2
    Newbie
    Join Date
    Apr 2007
    Location
    Il
    Posts
    35
    Id say that the gains on your amp are messed up. They need to match the preouts on your hu.

  3. #3
    Newbie silicoon's Avatar
    Join Date
    Mar 2007
    Location
    sydney
    Posts
    23
    Could be the RCA from the 1st amp to the 2nd... If you have a short in this cable then it will "pop" your speakers... sort of like your talking about... probably wouldnt be constant tho... try running a different RCA - if that doesnt work then try a seperate input ( ipod with a line out converter etc ) to just the 2nd amp and see if it works.

    I would be guessing your using the "pass through" on your 1st 4 channel amp to pass the signal to the 2nd? there may be something wrong with the pass through... try running the RCAs straight to the sub amp instead of through the 4 channel...

  4. #4
    Newbie DJ_KamBoosha's Avatar
    Join Date
    Nov 2005
    Location
    Egypt
    Posts
    6
    sounds to me like rca cables are grounded
    a diagram or some more details would be very helpful

  5. #5
    Newbie
    Join Date
    Mar 2007
    Location
    AZ
    Posts
    18
    Definatley sounds like a ground issue to me. Check your cables and your grounds.
    Dick
    08 Dodge Ram QC

  6. #6
    Newbie
    Join Date
    Mar 2007
    Location
    Michigan
    Posts
    36
    Ok got time to fiddle with the setup today..I plugged the cable into my Ipod than my subwoofer amp and It worked perfectly.. Than back into the laptop, When plugged into the laptop on low low volume it hits normal, than when i start turning the volume up, the woofers go crazy..

    Here is the diagram of my setup.




    Any help would be appreciated, thanks!

  7. #7
    JAC
    JAC is offline
    Low Bitrate JAC's Avatar
    Join Date
    May 2006
    Location
    North of NY
    Posts
    74
    I don't think you can take a 2-channel signal and split it to more than two without a preamp. This will cause ditortion eh especially what comes out of the laptop. Try using just 2-ch's then see if you can get it to a higher volume with out distorting and take it from there..

  8. #8
    Newbie silicoon's Avatar
    Join Date
    Mar 2007
    Location
    sydney
    Posts
    23
    yeah splitting 2 channels to that amount is definately not good - you will get major interference - if your sound card has more channels then use them - if not i would recommend getting a new soundcard or a line booster / preamp...

  9. #9
    Newbie
    Join Date
    Aug 2006
    Posts
    6
    Take your 2 channel RCA's and run to first amp. Amp should have RCA outputs, run RCA's from first amp to second amp selecting low pass or high pass as applicable.

  10. #10
    Car Audio Moderator durwood's Avatar
    Join Date
    Sep 2006
    Location
    Chicagoland (St. Charles,IL)
    Posts
    2,028
    Splitters can be used regardless of what other users have said. There will not be any real loss of signal to notice any kind of difference since it is such a high impedance output. You will however notice an improvement of sound when using an upgraded soundcard over onboard that has a low signal to noise ratio and uses lower quality components.

    Do you have solid grounds on both amps and the computer? You might also have a bad rca cable. Have you tried a different cable?

Page 1 of 2 12 LastLast

Similar Threads

  1. No subwoofer bass when using carpc
    By R@b in forum Car Audio
    Replies: 23
    Last Post: 08-21-2006, 06:50 PM
  2. CarPC next to subwoofer
    By twantrd in forum General Hardware Discussion
    Replies: 3
    Last Post: 04-19-2006, 07:41 PM
  3. subwoofer grounding problem
    By megagoo in forum General Hardware Discussion
    Replies: 3
    Last Post: 12-23-2005, 11:41 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •